Nursery stock planting method on coral sand of newly-built tropical dredger-reclaimed reef

Abstract

The invention discloses a nursery stock planting method on coral sand of a newly-built tropical dredger-reclaimed reef. The method comprises the steps of 1, adopting a nursery stock of which the height does not exceed 3 m; 2, treating the nursery stock with ABT rooting powder; 3, digging a planting pit, and leaching the plating pit with desalination seawater; 4, covering the bottom of the planting pit with red nutrient soil; adopting the desalination seawater to leach the coral sand or sea sand dug from the planting pit, and refilling the coral sand and the sea sand; 6, paving the surface of the planting pit with a layer of red nutrient soil, and irrigating with the desalination seawater. According to the nursery stock planting method on the coral sand of the newly-built tropical dredger-reclaimed reef, by leaching the coral sand or the sea sand with the desalination seawater, the salt and alkali content is lowered, the cycle is short, and the cost is low; by covering the red nutrient soil, not only is the soil structure of the planting pit improved and the pH value of the coral sand or the sea sand lowered, but also the red nutrient soil can be served as a bottom salt and alkali isolation layer; by using the coral sand and the sea sand as planting soil, not only is the cost saved, but also the original ecology of the reef is guaranteed; according to the planting technology, the survival rate of the transplanted nursery stock on the newly-built dredger-reclaimed reef is raised to 95% or above.

Description

Technical field [0001] The invention belongs to the technical field of methods for greening saline-alkali land, and particularly refers to a method for planting seedlings on coral sand of newly-built tropical refill islands. Background technique [0002] The soil structure of newly built refill islands and reefs is mainly coral sand or sea sand. These coral sands or sea sands are highly alkaline. This high-salinity characteristic is stressful for plant growth and has low nutrients. Transplanting seedlings on the reclaimed islands and reefs must be structurally improved. [0003] At present, some techniques for planting seedlings on coastal saline-alkali soils and coastal tidal flats have emerged; for example: Chinese patent CN103392459A provides a planting method for improving the survival of seedlings in sand. :3 mix, add the arbuscular mycorrhizal mycorrhizal mycorrhizal mycorrhizal mycorrhizal inoculant to the mixture with a mass ratio of 5-10:100 to make a slurry, dip the bare...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for planting seedlings on coral sand of newly built tropical reclamation islands and reefs, which solves the problem that the planting of seedlings in the prior art requires a large amount of nutrient substrate and construction of salt drainage projects, which cannot be realized on tropical reclamation islands and reefs The problem